Unlock instant, AI-driven research and patent intelligence for your innovation.

Heat treatment process for additive manufacturing of Al-Mg-Sc alloy

An al-mg-sc, additive manufacturing technology, applied in the field of additive manufacturing, can solve the problems of inapplicable additive manufacturing of Al-Mg-Sc alloy, etc., and achieve the effect of improving the tensile strength

Pending Publication Date: 2022-07-29
安徽哈特三维科技有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the microstructure of Al-Mg-Sc alloys manufactured by additive manufacturing is quite different from that prepared by traditional manufacturing processes, the existing heat treatment methods are not suitable for additive manufacturing of Al-Mg-Sc alloys.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Heat treatment process for additive manufacturing of Al-Mg-Sc alloy
  • Heat treatment process for additive manufacturing of Al-Mg-Sc alloy
  • Heat treatment process for additive manufacturing of Al-Mg-Sc alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A heat treatment process for additively manufacturing an Al-Mg-Sc alloy, which specifically includes, performing an aging treatment on an SML formed part; the aging treatment temperature is 325° C., and the aging treatment time is 4 hours.

[0027] The additively manufactured Al-Mg-Sc alloy includes by weight percentage: Sc 0.7%, Mg 4.5%, Zr 0.4%, Mn 0.6%, Fe 0.2%, Si 0.1%, Zn 0.15%, Cu 0.1%, Ti 0.1%, V 0.05%, and the balance is Al. The particle size distribution of the Al-Mg-Sc alloy powder is 24.7-66.8 μm; the bulk density is 1.39 g / cm 3 .

[0028] The additive manufacturing Al-Mg-Sc alloy forming process parameters include: SML technology forming, laser power 375W, scanning speed 1400mm / s, scanning spacing 0.15mm, layer thickness 30μm, calculated laser energy density 59.52J / mm 3 An SML molded part is obtained. The obtained SML formed part had a tensile strength of 427 MPa, a yield strength of 386 MPa and an elongation at break of 15.8%.

[0029] After aging tre...

Embodiment 2

[0031] A heat treatment process for additively manufacturing an Al-Mg-Sc alloy, which specifically includes, performing an aging treatment on an SML formed part; the aging treatment temperature is 325° C., and the aging treatment time is 8 hours.

[0032] The composition, forming process and process parameters of the additively manufactured Al-Mg-Sc alloy are the same as those in Example 1.

[0033] After aging treatment, the tensile strength is 660MPa, the yield strength is 639MPa, and the elongation at break is 6.0%.

Embodiment 3

[0035] A heat treatment process for additively manufacturing an Al-Mg-Sc alloy, which specifically includes, performing an aging treatment on an SML formed part; the aging treatment temperature is 375° C., and the aging treatment time is 4 hours.

[0036] The composition, forming process and process parameters of the additively manufactured Al-Mg-Sc alloy are the same as those in Example 1.

[0037] After aging treatment, the tensile strength is 622MPa, the yield strength is 585MPa, and the elongation at break is 8.0%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle size distributionaaaaaaaaaa
tensile strengthaaaaaaaaaa
yield strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a heat treatment process of an Al-Mg-Sc alloy for additive manufacturing, which comprises the following steps: carrying out aging treatment on the Al-Mg-Sc alloy for additive manufacturing; the aging treatment temperature ranges from 300 DEG C to 400 DEG C, and the aging treatment time ranges from 4 h to 10 h. According to the heat treatment process, the tensile strength of the additive manufacturing Al-Mg-Sc alloy can be remarkably improved, the highest tensile strength can reach 691 MPa, and more possibilities are provided for application of the additive manufacturing Al-Mg-Sc alloy under the high-strength condition.

Description

technical field [0001] The invention belongs to the field of additive manufacturing, in particular to a heat treatment process for additively manufacturing Al-Mg-Sc alloys. Background technique [0002] Al-Mg-Sc aluminum alloys have high strength, good plasticity and toughness, and excellent corrosion resistance and welding performance. The manufacture of traditional aluminum alloys includes casting, forging and powder metallurgy. In order to cooperate with the traditional manufacturing process, corresponding processing tools need to be developed, thereby increasing the cost and processing cycle. [0003] Additive manufacturing technology can realize free design, has the characteristics of low cost and high efficiency, and has irreplaceable advantages in the preparation of parts and components in aerospace and other fields. Among them, Selective Laser Melting (SLM) is a new type of additive manufacturing technology that appeared around 2000. SLM technology uses metal powd...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/047C22C21/08B22F10/64B22F10/28B33Y10/00B33Y40/20B33Y80/00C22C1/04
CPCC22F1/047C22C21/08B22F10/64B22F10/28B33Y10/00B33Y40/20B33Y80/00C22C1/0416
Inventor 刘桐陈大勇沈力骆良顺
Owner 安徽哈特三维科技有限公司